/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/TriangleMesh.h
Return the array of all cross segment indices for all pairs of adjacent triangles.
[TArray](API\Runtime\Core\Containers\TArray)< [Chaos::TVec2](API\Runtime\ChaosCore\Chaos\TVec2)< int32 > > GetUniqueAdjacentPoints() const